:root{color-scheme:light;--ink:#101318;--muted:#66707d;--line:#d9dee7;--panel:#fff;--bg:#f3f5f8;--deep:#090f78;--blue:#1018a6;--soft:#eef0ff;--danger:#a12b36;--ok:#117447;--shadow:0 18px 54px rgba(21,30,55,.11)}
*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:radial-gradient(circle at 16% 10%,#fff 0,#f6f7fa 34%,#eef1f6 100%);color:var(--ink);padding:12px 0;overflow-x:hidden}
a{color:var(--deep);text-decoration:none}a:hover{text-decoration:underline}
.account-shell{width:min(1040px,calc(100% - 24px));margin:0 auto;display:grid;grid-template-columns:minmax(285px,.82fr) minmax(420px,1.18fr);background:var(--panel);border:1px solid #d6dbe4;border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}
.account-shell.compact{min-height:0}.account-hero{position:relative;padding:32px 34px;color:#fff;background:linear-gradient(148deg,#090b5e 0%,#1017a2 52%,#0b0d61 100%);overflow:hidden}.account-hero:before,.account-hero:after{content:"";position:absolute;border-radius:999px;background:rgba(255,255,255,.08);pointer-events:none}.account-hero:before{width:270px;height:270px;right:-165px;top:-95px}.account-hero:after{width:200px;height:200px;left:-125px;bottom:-95px}
.account-logo{position:relative;z-index:1;width:44px;height:44px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.68);border-radius:11px;background:#050a78;font-size:21px;font-weight:800;box-shadow:inset 0 0 0 1px rgba(255,255,255,.12)}
.account-wordmark{position:relative;z-index:1;margin-top:11px;display:flex;flex-direction:column;gap:1px}.account-wordmark strong{font-size:17px;letter-spacing:-.2px}.account-wordmark span{font-size:11px;color:#cbd0ff}
.app-chip{position:relative;z-index:1;margin-top:30px;display:inline-flex;align-items:center;gap:8px;padding:6px 10px 6px 6px;border:1px solid rgba(255,255,255,.22);border-radius:999px;background:rgba(255,255,255,.08);font-size:11px}.app-chip b{display:grid;place-items:center;min-width:23px;height:23px;padding:0 6px;border-radius:999px;background:#fff;color:#0b117e;font-size:10px}.app-chip span{color:#eef0ff;font-weight:650}
.account-hero h1{position:relative;z-index:1;margin:15px 0 9px;font-size:clamp(32px,3.6vw,44px);line-height:1.02;letter-spacing:-1.55px}.hero-copy{position:relative;z-index:1;max-width:390px;margin:0;color:#dfe2ff;font-size:13px;line-height:1.5}.trust-row{position:absolute;z-index:1;left:34px;right:34px;bottom:26px;display:flex;flex-wrap:wrap;gap:6px}.trust-row span{padding:5px 7px;border:1px solid rgba(255,255,255,.18);border-radius:7px;color:#dce0ff;font-size:9px;letter-spacing:.3px;text-transform:uppercase}
.account-panel{padding:24px clamp(28px,4vw,44px);align-self:center}.panel-head span{font-size:9px;font-weight:800;letter-spacing:1.15px;color:#5e67b1}.panel-head h2{margin:4px 0 3px;font-size:25px;letter-spacing:-.65px}.panel-head p{margin:0 0 13px;color:var(--muted);font-size:12px;line-height:1.4}
.legacy-form-host form{margin:0}.legacy-form-host br{display:none}.legacy-form-host label,.legacy-form-host .control-label{display:block;margin:8px 0 3px;font-size:11px;font-weight:700;color:#303640;line-height:1.25}.legacy-form-host input[type=text],.legacy-form-host input[type=email],.legacy-form-host input[type=password],.legacy-form-host input[type=tel],.legacy-form-host select,.legacy-form-host textarea{display:block;width:100%!important;max-width:none!important;min-height:37px;padding:7px 10px;border:1px solid #cbd1dc;border-radius:9px;background:#fff;color:#111;font:14px/1.25 Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;outline:none;transition:border-color .14s,box-shadow .14s}.legacy-form-host textarea{min-height:58px!important;max-height:68px;resize:vertical}.legacy-form-host input:focus,.legacy-form-host select:focus,.legacy-form-host textarea:focus{border-color:#5f68d4;box-shadow:0 0 0 3px rgba(49,59,190,.11)}
.legacy-form-host input[type=submit],.legacy-form-host button[type=submit],.legacy-form-host .btn-primary{display:block;width:100%;min-height:39px;margin-top:10px;padding:8px 14px;border:0;border-radius:10px;background:linear-gradient(180deg,#1b24b6,#0b117e);color:#fff;font:700 13px/1 inherit;cursor:pointer;box-shadow:0 6px 15px rgba(17,25,161,.18)}.legacy-form-host input[type=submit]:hover,.legacy-form-host button[type=submit]:hover{filter:brightness(1.08)}
.legacy-form-host input[type=reset],.legacy-form-host button[type=reset]{display:inline-block!important;width:auto!important;min-height:24px!important;margin:4px 0 0!important;padding:2px 8px!important;border:1px solid #aeb5c0!important;border-radius:6px!important;background:#f5f6f8!important;color:#303640!important;font-size:11px!important;line-height:1.2!important;box-shadow:none!important}
.legacy-form-host img{display:block;max-width:100%;width:auto!important;height:auto!important;max-height:62px!important;margin:5px 0 2px;object-fit:contain}.legacy-form-host .errortxt,.legacy-form-host .error,.legacy-form-host .invalid-feedback{display:block!important;margin-top:3px;color:var(--danger)!important;font-size:11px}.legacy-form-host .row,.legacy-form-host .form-row{margin:0}.legacy-form-host [class*=col-]{max-width:100%;padding-left:0;padding-right:0}.legacy-form-host p{margin:5px 0;color:var(--muted);font-size:11px;line-height:1.35}.legacy-form-host .fa,.legacy-form-host i{font-style:normal}
.account-alert,.account-success{padding:10px 12px;border-radius:9px;font-size:12px;line-height:1.4}.account-alert.error{border:1px solid #efc8cd;background:#fff4f5;color:#7f2730}.account-success{border:1px solid #b7dfcc;background:#effaf5;color:#175b3b}.account-success strong{display:block;margin-bottom:2px}.account-success p{margin:0}
.account-links{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:11px;padding-top:9px;border-top:1px solid var(--line);font-size:11px;font-weight:650}.account-foot{margin:7px 0 0;color:#8a929e;font-size:9.5px;line-height:1.35}.account-foot code{font:inherit;color:#676e78}

/* Keep the whole registration form visible on a normal 1080p desktop even
   after browser/tab chrome reduces the CSS viewport to roughly 900-960px. */
@media(min-width:761px) and (max-height:980px){
  body{padding:7px 0}.account-shell{width:min(1060px,calc(100% - 18px));border-radius:20px;grid-template-columns:minmax(275px,.8fr) minmax(420px,1.2fr)}
  .account-hero{padding:24px 30px}.account-logo{width:40px;height:40px;font-size:19px}.account-wordmark{margin-top:8px}.app-chip{margin-top:20px}.account-hero h1{margin:12px 0 7px;font-size:38px}.hero-copy{font-size:12px;line-height:1.45}.trust-row{left:30px;right:30px;bottom:18px}
  .account-panel{padding:16px 34px}.panel-head h2{font-size:23px}.panel-head p{margin-bottom:8px}.legacy-form-host label,.legacy-form-host .control-label{margin-top:6px}.legacy-form-host input[type=text],.legacy-form-host input[type=email],.legacy-form-host input[type=password],.legacy-form-host input[type=tel],.legacy-form-host select{min-height:34px;padding-top:5px;padding-bottom:5px}.legacy-form-host textarea{min-height:50px!important;max-height:58px}.legacy-form-host img{max-height:55px!important;margin-top:3px}.legacy-form-host input[type=submit],.legacy-form-host button[type=submit],.legacy-form-host .btn-primary{min-height:36px;margin-top:7px}.account-links{margin-top:7px;padding-top:7px}.account-foot{margin-top:5px}
}

/* Phone layout is intentionally a compact brand bar, not a second full hero.
   Inputs stay at 16px so iOS Safari does not auto-zoom on focus. */
@media(max-width:760px){
  body{padding:4px 0;min-height:100vh;min-height:100dvh}.account-shell{width:calc(100% - 8px);margin:0 auto;display:block;border-radius:14px}
  .account-hero{min-height:0;padding:9px 12px;display:grid;grid-template-columns:36px minmax(0,1fr) auto;align-items:center;column-gap:9px}.account-hero:before{width:150px;height:150px;right:-95px;top:-92px}.account-hero:after{display:none}.account-logo{grid-column:1;width:36px;height:36px;border-radius:9px;font-size:17px}.account-wordmark{grid-column:2;margin:0;min-width:0}.account-wordmark strong{font-size:14px}.account-wordmark span{font-size:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.app-chip{grid-column:3;margin:0;gap:5px;padding:4px 7px 4px 4px;font-size:9px}.app-chip b{min-width:20px;height:20px;padding:0 4px;font-size:9px}.account-hero h1,.hero-copy,.trust-row{display:none}
  .account-panel{padding:9px 12px 10px}.panel-head span{font-size:8px;letter-spacing:.9px}.panel-head h2{margin:2px 0 2px;font-size:19px;line-height:1.1}.panel-head p{margin:0 0 6px;font-size:10px;line-height:1.25}
  .legacy-form-host label,.legacy-form-host .control-label{margin:5px 0 2px;font-size:10.5px;line-height:1.15}.legacy-form-host input[type=text],.legacy-form-host input[type=email],.legacy-form-host input[type=password],.legacy-form-host input[type=tel],.legacy-form-host select,.legacy-form-host textarea{min-height:34px;padding:5px 8px;border-radius:8px;font-size:16px;line-height:1.1}.legacy-form-host textarea{min-height:48px!important;max-height:56px}.legacy-form-host img{max-height:50px!important;margin:3px 0 1px}.legacy-form-host input[type=submit],.legacy-form-host button[type=submit],.legacy-form-host .btn-primary{min-height:35px;margin-top:7px;padding:6px 10px;border-radius:8px;font-size:12px}.legacy-form-host input[type=reset],.legacy-form-host button[type=reset]{min-height:21px!important;margin-top:3px!important;padding:1px 6px!important;font-size:10px!important}.legacy-form-host p{margin:3px 0;font-size:10px;line-height:1.2}.legacy-form-host .errortxt,.legacy-form-host .error,.legacy-form-host .invalid-feedback{margin-top:2px;font-size:10px}
  .account-links{flex-direction:row;justify-content:space-between;gap:8px;margin-top:6px;padding-top:6px;font-size:10px;line-height:1.2}.account-foot{margin-top:5px;font-size:8.5px;line-height:1.2}
}

/* Short iPhone/Safari viewport: keep every actual registration control on the
   first screen by trimming explanatory copy only; no form field is hidden. */
@media(max-width:760px) and (max-height:760px){
  body{padding:2px 0}.account-shell{width:calc(100% - 4px);border-radius:11px}.account-hero{padding:7px 10px;grid-template-columns:32px minmax(0,1fr) auto}.account-logo{width:32px;height:32px;font-size:15px}.account-wordmark strong{font-size:13px}.account-wordmark span{font-size:8px}.app-chip{padding:3px 5px 3px 3px}.app-chip b{height:18px;min-width:18px}
  .account-panel{padding:7px 10px 8px}.panel-head p{display:none}.panel-head h2{font-size:18px;margin-bottom:4px}.legacy-form-host label,.legacy-form-host .control-label{margin-top:4px}.legacy-form-host input[type=text],.legacy-form-host input[type=email],.legacy-form-host input[type=password],.legacy-form-host input[type=tel],.legacy-form-host select{min-height:32px;padding-top:4px;padding-bottom:4px}.legacy-form-host textarea{min-height:44px!important;max-height:48px}.legacy-form-host img{max-height:44px!important}.legacy-form-host input[type=submit],.legacy-form-host button[type=submit],.legacy-form-host .btn-primary{min-height:32px;margin-top:5px}.account-links{margin-top:4px;padding-top:4px}.account-foot{display:none}
}
/* v0.06.24 ChengAI Account About/Comment minimum */
.account-comment-rule{margin:4px 0 2px;color:var(--muted);font-size:10.5px;line-height:1.25}